Question

A patient with ventricular tachycardia is treated with amiodarone. Later, the patient develops palpitations and lightheadedness. An EKG is significant for the absence of P waves. What does the EKG show? 1) Atrial fibrillation 2) Ventricular fibrillation 3) Junctional rhythm 4) Sinus rhythm

Answer 1

The EKG shows a third-degree block or complete heart block, indicated by the absence of P waves and a dissociation between the atria and ventricles.

Step-by-step explanation:

The EKG shows the absence of P waves, which indicates a dissociation between the atria and the ventricles. This is known as a third-degree block or complete heart block. In this condition, the electrical impulses generated in the atria fail to reach the ventricles, leading to an independent rhythm in both the atria and ventricles.

Learn more about Third-degree block